Tides Today & Tomorrow in Merrimacport, MA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Merrimacport, MA.
Next low tide : 5:03 pm (1.1 ft)
Next high tide : in 2h 40m at 10:34 am (5.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8440369
Common Questions About Tides

Merrimacport, MA Tides - May 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:237.55:586.412:210.65:377:44First Quarter1Wed
2Thu6:157.46:516.512:301.31:130.65:367:45First Quarter2Thu
3Fri7:107.47:456.61:271.22:060.55:357:46First Quarter3Fri
4Sat8:077.38:426.92:261.03:000.45:337:47First Quarter4Sat
5Sun9:057.39:387.33:250.73:540.35:327:48Waxing Gibbous5Sun
6Mon10:037.310:327.84:220.34:450.15:317:49Waxing Gibbous6Mon
7Tue10:597.411:248.25:16-0.15:350.05:297:51Waxing Gibbous7Tue
8Wed11:537.46:10-0.46:250.05:287:52Full Moon8Wed
9Thu12:158.612:477.37:04-0.77:16-0.15:277:53Full Moon9Thu
10Fri1:068.81:397.37:56-0.98:060.05:267:54Full Moon10Fri
11Sat1:578.92:307.18:47-0.98:570.15:257:55Waning Gibbous11Sat
12Sun2:488.83:217.09:39-0.79:480.25:247:56Waning Gibbous12Sun
13Mon3:388.54:126.810:31-0.510:420.45:227:57Waning Gibbous13Mon
14Tue4:318.25:066.711:24-0.211:370.65:217:58Waning Gibbous14Tue
15Wed5:247.86:006.612:170.05:207:59Third Quarter15Wed
16Thu6:197.46:546.512:340.81:100.35:198:00Third Quarter16Thu
17Fri7:137.07:486.51:300.92:020.55:188:01Third Quarter17Fri
18Sat8:086.78:426.62:271.02:540.65:178:02Third Quarter18Sat
19Sun9:036.59:346.73:221.03:450.75:178:03Waning Crescent19Sun
20Mon9:566.310:226.94:160.94:340.85:168:04Waning Crescent20Mon
21Tue10:466.211:077.15:050.75:200.95:158:05Waning Crescent21Tue
22Wed11:326.211:497.25:530.66:041.05:148:06Waning Crescent22Wed
23Thu12:166.26:390.56:491.05:138:07New Moon23Thu
24Fri12:317.412:596.27:250.57:321.15:128:08New Moon24Fri
25Sat1:137.51:426.38:080.48:141.15:128:09New Moon25Sat
26Sun1:567.62:256.38:510.48:551.15:118:10New Moon26Sun
27Mon2:387.73:086.49:340.49:371.25:108:11Waxing Crescent27Mon
28Tue3:227.83:546.510:180.410:221.25:108:12Waxing Crescent28Tue
29Wed4:087.84:426.611:050.311:121.25:098:13Waxing Crescent29Wed
30Thu4:587.75:336.711:530.35:098:14Waxing Crescent30Thu
31Fri5:507.66:266.912:061.112:430.35:088:14First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8440369)

Common Questions About Merrimacport, MA Tides

Show All
What time does the tide turn (slack tide) in Merrimacport, MA today?

Slack tide in Merrimacport, MA is approximately 1:48 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Merrimacport, MA?

Merrimacport, MA is currently in a spring phase. Tonight's moon is 90% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Merrimacport, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Merrimacport, MA?

Tide predictions for Merrimacport, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Merrimacport, MA?

Tide data for Merrimacport, MA is sourced from NOAA Station #8440369. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8440369.

What is the moon phase in Merrimacport, MA tonight?

Tonight the moon over Merrimacport, MA is Waxing Gibbous (90% illuminated). This places Merrimacport, MA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA